atomic number 55

1. 1.

   a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal

   SynonymscesiumcaesiumCs

   Broadermetallic element

   Narrowercesium 137

Questions about atomic number 55

What does atomic number 55 mean?

atomic number 55 means "a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal".

What is another word for atomic number 55?

Close synonyms include cesium, caesium, Cs. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is atomic number 55 a common word?

atomic number 55 is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.